camaban, you know that the flu aka annoying sicko is just a very unhappy man with mental problems - i dont even bother warning him or anything - but i can do that if you want. his current signature and recent posts are certainly grounds for that. alternatively you can put him on your 'foes' list or ignore list.
now, for the 'idiots' in general, i think you'll be hard pressed finding a place where they are not the majority, in the forum, or in the real world, so you d better be prepared
lastly, we're all idiots at some point of time, but for some, mileage may vary.